Back and seat cushions for a chair



FIG. 1 is a perspective view showing the top, left side and front of a chair having the back and seat cushions which form my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines showing armrest members and a support base in FIG. 1 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for back and seat cushions for a chair, as shown and described. 